Displaying publications 861 - 880 of 1041 in total

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  1. Guru Raj AK, Pratap RC, Jayakumar R, Ariffin WA
    Med J Malaysia, 1998 Sep;53(3):251-6.
    PMID: 10968162
    To determine the clinical and radiological features of the patients who were found to have cavum septum pellucidum (CSP) on the cranial computerized tomographic (CT) scans.
    Matched MeSH terms: Septum Pellucidum/radiography*
  2. Chan PW, Muridan R, Debruyne JA
    Respirology, 2000 Dec;5(4):369-75.
    PMID: 11192548
    The aim of the study was to determine the clinical profile, aetiology and radiological categories in children diagnosed with bronchiolitis obliterans (BO).
    Matched MeSH terms: Bronchiolitis Obliterans/radiography*
  3. Nambiar P, Yaacob H, Menon R
    J Forensic Odontostomatol, 1996 Dec;14(2):30-3.
    PMID: 9227080
    Teeth are the most durable structures in the human body. The timing and sequence of their development, as contained in dental development charts, have been used as valid criteria for age determination. The third molars however are the last teeth to erupt and are regarded as the most variable in the dentition. Age estimation in a legal context, using developing third molars must be carefully applied otherwise justice may miscarry. A case of wrongful use of the technique is presented here.
    Matched MeSH terms: Molar, Third/radiography
  4. Kamin S
    Singapore Dent J, 1994 Jan;19(1):22-4.
    PMID: 9582680
    A case report of sequestra formation in the oral cavity most probably as a sequelae of periodontal abscess in a diabetic patient is presented. The sequestra probably formed as a complication of uncontrolled diabetes mellitus rather than erythroleukemia. The lesion was located at the bifurcation area of the lower left second molar. Removal of the sequestra, scaling and a course of antibiotics managed to control the lesion.
    Matched MeSH terms: Mandible/radiography
  5. Dhillon KS, Askander A, Doraismay S
    J Bone Joint Surg Br, 1996 May;78(3):427-30.
    PMID: 8636180
    Postoperative deep-vein thrombosis (DVT) is believed to be rare in Asians. We studied 88 consecutive patients in Malaysia who had operations for fracture of the proximal femur or for total hip or knee replacement. No patient had prophylaxis against DVT; bilateral ascending venography was performed between six and ten days after operation. A total of 55 patients (62.5%) showed venographic evidence of DVT. The prevalence was greatest after total knee replacement (76.5%), less after total hip replacement (64.3%) and smallest in the fracture group (50%). One patient developed symptomatic pulmonary embolism. In contrast to other reports from Asia, we found an incidence of postoperative DVT which is similar to that reported in Western populations. This suggests that the present practice of withholding routine prophylaxis against thromboembolism in Asian patients undergoing high-risk orthopaedic procedures should be reconsidered.
    Matched MeSH terms: Thrombophlebitis/radiography
  6. Soon CK, Razak M
    Med J Malaysia, 2001 Dec;56 Suppl D:57-60.
    PMID: 14569769
    Hemorrhagic lumbar synovial cysts are not commonly reported in English literature. Post-resection recurrence of synovial cyst is unusual and therefore recurrence symptoms required repeat MRI or CT scan. We reported a case of hemorrhagic lumbar synovial cyst presented with neurological deficit that recovered initially after surgery but subsequently developed recurrent of symptoms at a higher level due to fibrous tissue.
    Matched MeSH terms: Lumbar Vertebrae/radiography
  7. Shuid AN, Mohamad S, Mohamed N, Fadzilah FM, Mokhtar SA, Abdullah S, et al.
    J Orthop Res, 2010 Dec;28(12):1651-6.
    PMID: 20572125 DOI: 10.1002/jor.21180
    Fracture healing is a complex process, which is further complicated if the bone is osteoporotic. Calcium is one of the important minerals in bone and has been found to prevent osteoporosis but its role in fracture healing of osteoporotic bone is still unclear. We carried out a study on the effects of calcium supplementation on the late phase healing of fractured osteoporotic bone using an ovariectomized rat model. Twenty-four female Sprague-Dawley rats were divided into three groups: sham-operated (SO), ovariectomized-control (OVXC), and ovariectomized + calcium supplements (Ca). The right femurs of all the rats were fractured at mid-epiphysis and a K-wire was inserted for internal fixation. After 2 months of treatment, the rats were sacrificed and the femora were dissected out for radiological and biomechanical assessment. As expected, osteoporosis resulted in impaired healing as shown by the poor radiological and biomechanical properties of the OVXC group. CT scans showed significantly lower callus volumes in the SO and Ca groups compared to the OVXC group. Radiological scoring of fracture healing and callus staging of the SO and Ca groups were better than the OVXC group. However, the biomechanical parameters of the Ca group were significantly lower than the SO group and similar to the OVXC group. Therefore, calcium supplements may appear to improve fracture healing of osteoporotic bone but failed to improve strength.
    Matched MeSH terms: Femoral Fractures/radiography
  8. Chung WH, Chiu CK, Wei Chan CY, Kwan MK
    Acta Orthop Traumatol Turc, 2020 Sep;54(5):561-564.
    PMID: 33155569 DOI: 10.5152/j.aott.2020.19144
    Growth hormone secreting pituitary tumor or gigantism has not been previously reported to be associated with rapid progression of scoliosis in the literature. However, there are some reports indicating scoliosis can be worsened by growth hormone therapy in children and adolescents. A 19-year-old boy was referred to our institution for the treatment of a right thoracolumbar scoliosis. The Cobb angle had worsened from 29° to 83° over two years' duration. He attained puberty at the age of 13. He had a previous history of slipped upper femoral epiphysis (SUFE), which was operated in 2015, with no clinical features of gigantism. Preoperative assessment was performed. He was diagnosed with growth hormone secreting pituitary macroadenoma by magnetic resonance imaging with a high serum level of insulin-like growth factor-I (IGF-I). Computed tomography (CT) of the pancreas showed a pancreatic endocrine tumor. The patient was later diagnosed with multiple endocrine neoplasia type 1 (MEN 1). He underwent endoscopic endonasal excision of the pituitary mass and distal pancreatectomy. This case indicates that growth hormone secreting pituitary macroadenoma could result in rapid progression of scoliosis.
    Matched MeSH terms: Radiography/methods
  9. Mohamad F, Parent S, Pawelek J, Marks M, Bastrom T, Faro F, et al.
    J Pediatr Orthop, 2007 Jun;27(4):392-7.
    PMID: 17513958
    To evaluate the perioperative complications associated with surgical correction in neuromuscular scoliosis and to identify the risk factors associated with these complications.
    Matched MeSH terms: Scoliosis/radiography
  10. Lee YH, Quek ST, Khong PL, Lee CS, Wu JS, Zhang L, et al.
    Br J Radiol, 2020 Sep;93(1113):20200082.
    PMID: 32584595 DOI: 10.1259/bjr.20200082
    OBJECTIVE: To understand the status of pre-procedural safety practices in radiological examinations at radiology residency training institutions in various Asian regions.

    METHODS: A questionnaire based on the Joint Commission International Accreditation Standards was electronically sent to 3 institutions each in 10 geographical regions across 9 Asian countries. Questions addressing 45 practices were divided into 3 categories. A five-tier scale with numerical scores was used to evaluate safety practices in each institution. Responses obtained from three institutions in the United States were used to validate the execution rate of each surveyed safety practice.

    RESULTS: The institutional response rate was 70.0% (7 Asian regions, 21 institutions). 44 practices (all those surveyed except for the application of wrist tags for identifying patients with fall risks) were validated using the US participants. Overall, the Asian participants reached a consensus on 89% of the safety practices. Comparatively, most Asian participants did not routinely perform three pre-procedural practices in the examination appropriateness topic.

    CONCLUSION: Based on the responses from 21 participating Asian institutions, most routinely perform standard practices during radiological examinations except when it comes to examination appropriateness. This study can provide direction for safety policymakers scrutinizing and improving regional standards of care.

    ADVANCES IN KNOWLEDGE: This is the first multicenter survey study to elucidate pre-procedural safety practices in radiological examinations in seven Asian regions.

    Matched MeSH terms: Radiography/standards*
  11. Ang AH
    Med J Malaysia, 1973 Dec;28(2):75-9.
    PMID: 4276302
    Matched MeSH terms: Radiography/adverse effects*
  12. Jayaraman J, Roberts GJ
    Forensic Sci Int, 2018 Nov;292:61-70.
    PMID: 30269046 DOI: 10.1016/j.forsciint.2018.09.005
    Understanding dental maturation in ethnically distinct populations is important in forensic age estimations and the presence of population differences in dental maturation was highly debated. No such comparison had been performed between two major populations; Caucasian and Chinese. This study aims to analyze and compare the maturation of permanent teeth from a sample of Caucasian and Chinese populations. Dental panoramic radiographs of subjects aged 2-24years belonging to United Kingdom (UK) Caucasian and Hong Kong (HK) Chinese populations were obtained from a teaching hospital. The teeth were scored and reference datasets were developed separately for males and females. Statistical significance was set at p<0.05 and independent sample t-test was conducted between the average ages at assessment for each stage of development for all the teeth in both groups. The HK Chinese were dentally advanced than the UK Caucasians by an average of 5 months, however, reverse trend was observed in third molars (p<0.05). These findings must be considered whilst utilising population specific reference dataset for dental age estimation.
    Matched MeSH terms: Radiography, Panoramic*
  13. Krishnan M, Snelling MR
    Br Heart J, 1971 Sep;33(5):699-701.
    PMID: 5115012 DOI: 10.1136/hrt.33.5.699
    Matched MeSH terms: Ductus Arteriosus, Patent/radiography
  14. Lim BK, Bux SI, Rahmat K, Lam SY, Liew YW
    Singapore Med J, 2012 Nov;53(11):732-6.
    PMID: 23192500
    We compared the effectiveness of different types of non-commercial neutral oral contrast agents for bowel distension and mural visualisation in computed tomographic (CT) enterography.
    Matched MeSH terms: Intestines/radiography*
  15. Damodaran P, Subramaniam R, Omar SZ, Nadkarni P, Paramsothy M
    Singapore Med J, 2000 Sep;41(9):431-5.
    PMID: 11193115
    The object of this study is to determine the status of an urban Malaysian woman in her menopause age group with reference to her menopausal symptoms, lipid profile, breast, pelvis and bone. One hundred and sixty four women attending the Menopause Clinic of University Hospital, Kuala Lumpur who had not previously been on hormone replacement therapy were studied. Forty nine women were perimenopausal, 74 women were in early menopause (within 5 years of menopause) and 41 women were in late menopause (after 5 years of menopause). The most common symptoms were hot flushes (56%) and generalised tiredness (49%). Eighty four percent (84%) of women had high cholesterol levels. Serum triglycerides were highest in the late menopause group. There were 2 cases of intraductal carcinoma diagnosed on routine mammography, with 8 cases of fibrocystic breast disease and 7 cases of suspicious breast lumps. Routine ultrasound (pelvic and abdominal) revealed two women with ovarian cysts, 6 women with an endometrial thickness of more than 5 mm and 8 women with uterine fibroids. Eighty five women (51.8%) had mild osteoporosis while four women had moderate osteoporosis on dual photon measurements for bone mineral density. Menopause clinics should aim at investigating a woman in her menopause as a whole. Vasomotor symptoms were common in the urban Malaysian menopausal woman. There was a high incidence of lipid abnormalities. Routine mammography, pelvic ultrasound examinations and bone mineral density tests detected significant pathology and abnormalities.
    Study site: Menopause Clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
    Matched MeSH terms: Breast Diseases/radiography
  16. Noraini AR, Gay E, Ferrara C, Ravelli E, Mancini V, Morra E, et al.
    Singapore Med J, 2009 Dec;50(12):1189-95.
    PMID: 20087557
    To establish the role of positron-emission tomography (PET)-computed tomography (CT) in post-transplant lymphoproliferative disorder (PTLD) patients, compared to conventional imaging (ultrasonography/CT/magnetic resonance imaging) in relation to its accuracy, sensitivity and specificity.
    Matched MeSH terms: Lymphoma/radiography*
  17. Leong HS, Heng R, Emmanuel SC
    Singapore Med J, 2007 Jan;48(1):34-40.
    PMID: 17245514
    INTRODUCTION: Breast cancer is the commonest female cancer in Singapore. It is steadily rising with an incidence of 53.1 cases per 100,000 persons per year among women. Screening for detection of early lesions which are highly curable helps to reduce mortality.
    METHODS: Over three afternoon sessions in December 2003, 224 female patients aged 40-65 years, participated in interviews conducted by the National Healthcare Group Polyclinics, Singapore. The survey sought information on mammographic screening history, the time interval since the previous mammographic screening, and the reasons for not going for the screening.
    RESULTS: The survey found that only 26.4 percent (28 out of 106) among those aged 40 to 49 years had mammographic screening done within the past one year, and 43.2 percent (51 out of 118) among those aged 50 to 65 years had screening done within the last two years. Chinese women were twice more likely than Malay women to have a mammogram done. The commonest reasons for not wanting to have mammographic screening among women who did not have a mammogram done or had mammogram done more than two years ago, were lack of time (42.5 percent), fear of pain during the procedure (26.9 percent), and the belief that cancer would not happen to them (24.6 percent).
    CONCLUSION: Despite publicity on breast cancer being the commonest cancer among women in Singapore and cure being possible if the malignancy was detected early, close to half of the women aged 40-65 years old who attended the National Healthcare Group Polyclinics did not have mammographic screening done. One-quarter of the women who did not have mammogram screening did not do so as they did not think cancer would happen to them.
    Study site: NHG Polyclinics, Singapore
    Matched MeSH terms: Breast Neoplasms/radiography*
  18. Roy RN
    Med J Aust, 1969 Apr 26;1(17):842-8.
    PMID: 4977736
    Matched MeSH terms: Tuberculosis, Pulmonary/radiography
  19. Md Ralib AR, Ariff AR, Shuaib IL, Naing NN, George PJ, Abdullah JM
    PMID: 15691152
    A cross-sectional study was conducted to predict the outcome in patients with subdural empyema, using initial and post-treatment CT scan brain parameters. Data collection was done on those children who were diagnosed to have subdural empyema by CT scan of the brain with contrast, who underwent burrhole evacuation, from February 2000 until April 2002. Numerous factors, such as coma or loss of unconsciousness at diagnosis, age, types of antibiotic, microbiology, extension of empyema, associated cerebral infarction and ventriculitis, were analyzed. Poor prognosis was associated with loss of consciousness, and hypodensity by CT scan at presentation (p < 0.005). Patients with an extensive subdural empyema will have a good outcome if they are treated early and aggressively with antibiotics and burrhole evacuation.
    Matched MeSH terms: Empyema, Subdural/radiography*
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